LMT Onsrud LP makes solid carbide routing tools designed specifically for machining fiberglass, CFRP, aramid and other composite materials, at its modern cutting tool manufacturing and customer service facility in suburban Chicago. Our composite router offerings begin with solid Carbide Burrs featuring the familiar pattern of cross-hatched, diamond-shaped teeth. These tools are available with end mill or drill points.

We also make fluted solid carbide burrs for machining composites. Some of our fluted burrs are designed specifically for difficult-to-cut materials such as aramid fiber composites and phenolics. Most of our fluted carbide routers are available with diamond coatings for extended life in CNC machining operations.

Our solid carbide Compression Mills for Composites feature upcut and downcut spiral flutes that compress the composite material being machined to prevent delamination. The cutting edges of our compression mills have a high positive rake, providing a quick, clean shearing action that keeps heat to a minimum and prevents resin burn. These tools are also available with a diamond film coating for extended tool life.

Take Advantage of Our Expertise

Using metal cutting tools to machine today’s highly abrasive composite materials can be costly in terms of tool wear and damage to workpieces. Onsrud makes an extensive line of cutting tools expressly designed for today’s difficult-to-machine, space-age materials. If the tools you are currently using are falling short in terms of performance, let us show you how our tools can improve your machining operations. Chances are that one or more tools from our extensive inventory will be ideally suited to your requirements. If not, we’ll be happy to design a tool tailored to your job’s precise needs.